Compare towns

Killingly vs Devens vs Groton vs Plainfield

Cost, people, housing, commute and schools, side by side, each benchmarked against the U.S..

What stands out worked out from the figures below

Killingly has the most renters (28.4% rent).
Devens has the oldest population (median age 48.6).
Groton has the most kids (28.3% under 18).
Plainfield has the youngest population (median age 37).

What matters to you?

Pick a few. We’ll pull those rows to the top and mark which town comes out ahead on each. There’s no overall score: what matters is up to you.

MeasureKillinglyDevensGrotonPlainfield
People
Population
17,867Highest
1,723Lowest
11,390
15,141
Growth since 20102010 → 2020 census —
-7.8%Lowest
U.S.: +7.4%
+6.3%Highest
U.S.: +7.4%
—
Median age
39.5±3
about the U.S. average
48.6±4.3Highest
25% above U.S.
41.4±2.7
6% above U.S.
37±4.5Lowest
5% below U.S.
Kids under 18
19.8%±2.3
U.S.: 22%
5.5%±3.9Lowest
U.S.: 22%
28.3%±4.9Highest
U.S.: 22%
19.4%±2.6
U.S.: 22%
Age 65+
19.7%±2.4Highest
U.S.: 17.2%
14%±5Lowest
U.S.: 17.2%
17.3%±2.8
U.S.: 17.2%
16.6%±2.4
U.S.: 17.2%
Killingly and Groton are within the Census margin of error here, so we can’t say which is really higher.
Bachelor’s degree+adults 25+
22.9%
U.S.: 35.7%
21.9%
U.S.: 35.7%
70.1%Highest
U.S.: 35.7%
15%Lowest
U.S.: 35.7%
Enrolled in collegeshare of residents
5.4%±1.9
U.S.: 6.4%
5.2%±4.2Lowest
U.S.: 6.4%
5.6%±1.9Highest
U.S.: 6.4%
5.6%±1.8Highest
U.S.: 6.4%
Cost of living
Household incomemedian
$84,350±$8k
4% above U.S.
$189,250±$63k
134% above U.S.
$192,958±$27kHighest
139% above U.S.
$76,993±$8kLowest
5% below U.S.
Groton and Devens are within the Census margin of error here, so we can’t say which is really higher.
Home valuemedian, owner-occupied
$288,600±$15k
13% below U.S.
$556,800±$96k
67% above U.S.
$743,400±$46kHighest
123% above U.S.
$272,100±$16kLowest
18% below U.S.
Rentmedian gross, monthly
$1,044±$141Lowest
26% below U.S.
$1,500±$539Highest
6% above U.S.
$1,458±$335
3% above U.S.
$1,204±$70
15% below U.S.
Devens and Groton are within the Census margin of error here, so we can’t say which is really higher.
Property taxmedian, yearly
$3,922Lowest
26% above U.S.
$5,556
78% above U.S.
$10,000+Highest
at least 221% above U.S.
$4,209
35% above U.S.
Renters paying 30%+of income on rent
42.8%±10.9
U.S.: 51.1%
85.4%±64.7Highest
U.S.: 51.1%
43.8%±17
U.S.: 51.1%
39.8%±9.5Lowest
U.S.: 51.1%
Devens and Groton are within the Census margin of error here, so we can’t say which is really higher.
Below poverty line
11.4%
U.S.: 12.5%
25.3%Highest
U.S.: 12.5%
3.8%Lowest
U.S.: 12.5%
8.7%
U.S.: 12.5%
Housing
Homeownersof occupied homes
71.6%Lowest
U.S.: 65.2%
79.3%
U.S.: 65.2%
88.8%Highest
U.S.: 65.2%
73.6%
U.S.: 65.2%
Typical home builtmedian year
1968
12 yrs older than U.S.
1950Lowest
30 yrs older than U.S.
1988Highest
8 yrs newer than U.S.
1971
9 yrs older than U.S.
Getting to work
Average commuteone way
28 min
6% above U.S.
28 min
5% above U.S.
32 minHighest
22% above U.S.
27 minLowest
about the U.S. average
Work from home
11.1%±2.3
U.S.: 15.1%
28.5%±11.5Highest
U.S.: 15.1%
27.5%±5.8
U.S.: 15.1%
10%±4Lowest
U.S.: 15.1%
Devens and Groton are within the Census margin of error here, so we can’t say which is really higher.
Schools
Public school scoresrank in state, math + reading #136 of 149 in CT — #39 of 282 in MA #131 of 149 in CT
School district Connecticut Technical Education and Career System · Eastern Connecticut Regional Educational Service Center (EAS — Groton-Dunstable Plainfield School District
High school in town Killingly High School — Groton Dunstable Regional Plainfield High School
Students per teacherat that high school
11.1
—
13.7Highest
10.3Lowest
On TownTapestry
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U.S. average · Sources: U.S. Census Bureau, American Community Survey 5-year estimates 2020–2024; 2010 & 2020 decennial census; NCES Common Core of Data. “±” is the Census margin of error. Property tax is top-coded by the Census at $10,000+. School rank compares math and reading proficiency against the state average.